Chapter 6, Section 4: Fractions, Decimals, and Percents

Write each faction as a decimal.

1) 5/8

2) 9/20

3) ¾

4) 5/6

5) 2/3

6) 8/11

1) 0.625

2) 0.45

3) 0.75

4) 0.833333

5) 0.66666

6) 0.72727272727272

Percent

• A PERCENT is a Ratio that Compares a number to 100.

• Therefore, you can write a percent as a fraction with a denominator of 100.

• If you can write it as a fraction, it means you can write it as a ratio, decimal, and percent as well.

Write as a fraction or mixed number in Simplest Form.

• 5%

• 58%

• 144%

• 72%

1st: Write as the % over 100 (#/100)

2nd: Simplify.

Check answers with Ms. D-H.

Percent Decimal

• Write the Percent as a Fraction, with a denominator of 100, then Divide.

• Remember Top Number goes in the House.

• Bottom Number goes outside of the House.

Try This: Percent Decimal

• 9.7 %

• 1st: Don’t let the decimal percent phase you.

• 2nd: Put 9.7 over 100 to make a fraction.

• 3rd: Divide 9.7 by 100.

• 4th: your answer is 0.097

Try These, Percent Decimal

• 16%

• 62.5%

• 120%

Check answers with Ms. D-H.

Word Problem Alert

• About 45% of the people in the United States have type O blood. Express this percent as a decimal and as a fraction in simplest form.

Check answers with Ms. D-H.

Decimal Percent

• 1st: Rewrite Decimal as a Fraction, with a denominator of 100.

• 2nd: Write the fraction as a percent.

OR

• Move the decimal point two places to the right and add a percent sign!

Try These: Use the First Method, Check your Answer with the Second Method:

Decimal Percent

• 0.333

• 0.023

• 1.75Check answers with Ms. D-H.

Fraction Percent

• 1st: Divide the numerator by the denominator.

• 2nd: Turn the Decimal quotient into a percent (using either of the previous two methods).

Try This:

• Five out of sixteen families in the Argentina own Penguins. What percent of families own Penguins?

• 1st: Write as a fraction.

• 2nd: Divide the numerator by the denominator.

• 3rd: Write as a percent.

Try This One Too:

• Three out of eleven families in Argentina own Tarantulas. To the nearest percent, what percent of families own Tarantulas?

27%

Assignment #21

• Practice 6-4

• www.phschool.com, code: awe-0604